#include <stdio.h>

int forDemo()
{
  float start, end, step;
  float celsius, fahr;

  start = 0;
  end = 300;
  step = 20;

  for(fahr = start; fahr < end;  fahr += step)
  {
	celsius = 5 * (fahr-32) / 9;
	printf("%3.2f\t %3.2f \n ", celsius, fahr);
  }

    return 0;
}
